14987799 has 6 divisors (see below), whose sum is σ = 21649056. Its totient is φ = 9991860.

The previous prime is 14987771. The next prime is 14987803. The reversal of 14987799 is 99778941.

14987799 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14987799 - 2⁵ = 14987767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14987729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 832647 + ... + 832664.

It is an arithmetic number, because the mean of its divisors is an integer number (3608176).

Almost surely, 2^14987799 is an apocalyptic number.

14987799 is a deficient number, since it is larger than the sum of its proper divisors (6661257).

14987799 is a wasteful number, since it uses less digits than its factorization.

14987799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665317 (or 1665314 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 14987799 is about 3871.4078834450. The cubic root of 14987799 is about 246.5543220649.

The spelling of 14987799 in words is "fourteen million, nine hundred eighty-seven thousand, seven hundred ninety-nine".